package com.example.controller;

import com.example.domain.Book;
import com.example.service.BookService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

@RestController
@RequestMapping("/books")
public class BookController {
    @Autowired
    private BookService bookService;
    @PostMapping
    public Result save(@RequestBody Book book) {
        boolean flag=bookService.save(book);
        return new Result(flag?Code.SAVE_OK:Code.SAVE_ERR,flag);
    }
    @PutMapping
    public Result update(@RequestBody Book book) {
        boolean flag=bookService.update(book);
        return new Result(flag?Code.UPDATE_OK:Code.UPDATE_ERR, flag);
    }
    @DeleteMapping("/{id}")
    public Result delete(@PathVariable Integer id) {
        boolean flag=bookService.delete(id);
        return new Result(flag?Code.DELETE_OK:Code.DELETE_ERR, flag);
    }
    @GetMapping("/{id}")
    public Result getById(@PathVariable Integer id) {
         Book book=bookService.getById(id);
         Integer code=book !=null ?Code.GET_OK:Code.GET_ERR;
         String msg= book !=null ?"":"数据查询失败，请重试！";
         return new Result(code,book,msg);
    }
    @GetMapping
    public Result getAll() {
        List<Book> bookList=bookService.getAll();
        Integer code=bookList !=null ?Code.GET_OK:Code.GET_ERR;
        String msg= bookList !=null ?"":"数据查询失败，请重试！";
        return new Result(code,bookList,msg);
    }
}
